Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)
- 1999.04a
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- Pages.369-374
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- 1999
Ultimate Strength of Composite Beams with Unreinforced Web Opening
유공 합성보의 극한강도식의 제안
Abstract
A practical approach of calculating the ultimate strength of composite beams with unreinforced web opening is proposed. In this method, the slab shear contribution at the opening is calculated as the smaller of the shear strength of the slab and the pullout capacity of the shear connectors at the high moment end. A simple interaction equation is used to predict the ultimate strength under simultaneous bending moment and shear force. Strength prediction by the proposed method is compared with previous test results and the predictions by other analytical method. The comparison shows that the proposed method predicts the ultimate capacity with resonable accuracy.
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